特高压输电线路并联电抗器最佳补偿度的计算研究  

Study on the Optimum Compensation Degree for the Shunt Reactor of UHV Transmission Line

作　　者：张豹[1] 许志兵[1] 徐海滨[1] 陈鹏[1] 王骏强[1] 

机构地区：[1]广西大学电气工程学院,广西南宁530004

出　　处：《电气开关》2016年第4期39-41,共3页Electric Switchgear

摘　　要：探讨了特高压输电线路空载时的电容效应,并研究了并联电抗器对空载输电线路工频电压升高的抑制机理及其特性。利用仿真软件ATP-EMTP,找出了并联电抗器抑制空载长线路工频过电压的最佳补偿度。研究结果表明,特高压输电线路空载或轻载时会出现工频电压升高;采用并联电抗器的补偿措施可以有效的抑制工频过电压;并联电抗器的最佳补偿度应控制在75%~90%。the capacitive effect of the no-load of UHV transmission line is discussed, and the mechanism and character- istics of the suppression of the power line voltage of the shunt reactor are studied. Using the simulation software ATP - EMTP, the optimal compensation degree of the shunt reactor to suppress the over-voltage of the no-load long line is found. Research results show that the UHV transmission line no-load or light load will occur when the power frequency overvoltage ; shunt reactor compensation measures are adopted to effectively restrain the power frequency overvohage ;opti- mal compensation of the shunt reactor should be controlled in 70% -90%.

关 键 词：特高压输电线路 电容效应 工频过电压 并联电抗器 

分 类 号：TM47[电气工程—电器]